Why is there a current sound when the computer host is connected to the speaker?

• Huawei's Strategic Department Director Gai Gang: The cumulative installed base of open source Euler operating system exceeds 10 million sets
  On November 15, the first AI native open source operating system openEuler, openEuler 24 03 LTS version, was officially released on June 6 this year. ...
• Analysis of the application of several common contact parts in high-voltage connectors of new energy vehicles
  Introduction: Connectors are used in every car. The device uses electrical, optical and other signals to control the corresponding mechanical force to connect, disconnect and convert, thereby realizing the corresponding circuit or optical channel conversion. ...
• Wiring harness durability test and contact voltage drop test method
  Based on the QC T 29106-2014 standard, this paper proposes a new durability characteristic test and contact voltage drop test method, and conducts experimental verification on these two test methods. ...
• Sn-doped CuO nanostructure-based ethanol gas sensor for real-time drunk driving detection in vehicles
  Metal oxides and their composites with other materials (such as MXenes and metal chalcogenides) can be used to achieve different ...
• Design considerations for automotive battery wiring harness
  The battery is one of the power sources of the car. When the generator stops working and the engine is started, all the power is output from the battery. When the engine is idling or working at a low speed, the power generation of the generator cannot meet the demand. ...
• Do you know all the various motors commonly used in automotive electronics?
• What are the functions of the Internet of Vehicles? What are the uses and benefits of the Internet of Vehicles?
• Power Inverter - A critical safety system for electric vehicles
• Analysis of the information security mechanism of AUTOSAR, the automotive embedded software framework

Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.

• Historical Article Catalogue of "Microcontroller and Embedded System Applications"
• Opportunities for Embedded Systems in the Internet of Things Era
• Viewing the IoT from the Perspective of Embedded Systems

• Allegro MicroSystems Introduces Advanced Magnetic and Inductive Position Sensing Solutions at Electronica 2024
• Car key in the left hand, liveness detection radar in the right hand, UWB is imperative for cars!
• After a decade of rapid development, domestic CIS has entered the market
• Aegis Dagger Battery + Thor EM-i Super Hybrid, Geely New Energy has thrown out two "king bombs"
• A brief discussion on functional safety - fault, error, and failure
• In the smart car 2.0 cycle, these core industry chains are facing major opportunities!
• The United States and Japan are developing new batteries. CATL faces challenges? How should China's new energy battery industry respond?
• Murata launches high-precision 6-axis inertial sensor for automobiles
• Ford patents pre-charge alarm to help save costs and respond to emergencies
• New real-time microcontroller system from Texas Instruments enables smarter processing in automotive and industrial applications